Whole­sale used car and light truck prices hit a record annual peak in March, accord­ing to NADA Used Car Guide, in its April edi­tion of Guide­lines. Whole­sale used vehi­cle prices up to 8 years old went up 12% in March, con­sid­er­ably higher than the 3% increase in the same month last year. NADA UCG looks at where prices are head­ing through this year.